Deok Hwan
type: MusicGroup
genre: k-ballad
popularity: 25
followers: 4236
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x12aa94eb53e5c1182a2164763a0c848ad51395fde6eb03f42086b05b61dbbe42
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c566e9f9-084c-43e2-8b19-9b4ac34f6571.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c566e9f9-084c-43e2-8b19-9b4ac34f6571.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c566e9f9-084c-43e2-8b19-9b4ac34f6571
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x12aa94eb53e5c1182a2164763a0c848ad51395fde6eb03f42086b05b61dbbe42","name":"Deok Hwan","registered_at":"2026-06-12T09:24:02Z","symbol":"NIM0255211","token_address":"0xcf44365808e2f2462da217ace4502ad42a4278e6","type":"artist","uuid":"c566e9f9-084c-43e2-8b19-9b4ac34f6571"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12aa94eb53e5c1182a2164763a0c848ad51395fde6eb03f42086b05b61dbbe42. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c566e9f9-084c-43e2-8b19-9b4ac34f6571.json and https://artists.proofprofile.net/proofs/artist/c566e9f9-084c-43e2-8b19-9b4ac34f6571.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T21:20:00Z
  text: {"copyright_id":"0x12aa94eb53e5c1182a2164763a0c848ad51395fde6eb03f42086b05b61dbbe42","name":"Deok Hwan","registered_at":"2026-06-12T09:24:02Z","symbol":"NIM0255211","token_address":"0xcf44365808e2f2462da217ace4502ad42a4278e6","type":"artist","uuid":"c566e9f9-084c-43e2-8b19-9b4ac34f6571"}
album: Queen In Hyun's Man OST
  type: MusicAlbum
  date published: 2013-03-28
album: 역류 (Original Television Soundtrack), Pt. 11
  type: MusicAlbum
  date published: 2018-03-02
album: 미워도 사랑해 (Original Television Soundtrack), Pt. 21
  type: MusicAlbum
  date published: 2018-04-08